A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

usb: chipidea: fix nobody cared IRQ when booting with host role

Browse source 
If we connect Male-A-To-Male-A cable between otg-host and host pc,
the ci->vbus_active is set wrongly, and cause the controller run
at peripheral mode when we load gadget module (ci_udc_start will be run),
but the software runs at host mode due to id = 0. The ehci_irq
can't handle suspend (USBi_SLI) interrupt which is enabled for
peripheral mode, it causes no one will handle irq error.

This patch is needed for 3.12 stable

Cc: stable <[email protected]>
Acked-by: Michael Grzeschik <[email protected]>
Reported-by: Marc Kleine-Budde <[email protected]>
Tested-by: Marc Kleine-Budde <[email protected]>
Signed-off-by: Marc Kleine-Budde <[email protected]>
Signed-off-by: Peter Chen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Peter Chen 2013-12-05 15:20:50 +08:00 • committed by Greg Kroah-Hartman
commit 5a1e1456fc
2 changed files with 4 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

4
drivers/usb/chipidea/core.c
View file

@ -642,6 +642,10 @@ static int ci_hdrc_probe(struct platform_device *pdev)
: CI_ROLE_GADGET;
}
/* only update vbus status for peripheral */
if (ci->role == CI_ROLE_GADGET)
ci_handle_vbus_change(ci);
ret = ci_role_start(ci, ci->role);
if (ret) {
dev_err(dev, "can't start %s role\n", ci_role(ci)->name);

3
drivers/usb/chipidea/udc.c
View file

@ -1795,9 +1795,6 @@ static int udc_start(struct ci_hdrc *ci)
pm_runtime_no_callbacks(&ci->gadget.dev);
pm_runtime_enable(&ci->gadget.dev);
/* Update ci->vbus_active */
ci_handle_vbus_change(ci);
return retval;
destroy_eps: